JLS appear to be enjoying the sights and sounds of Las Vegas as band member Marvin Hume’s eight-day stag do continues ahead of tying the knot with the Saturdays’ Rochelle Wiseman.

Marvin beams as he jets off on a helicopter tour (Picture: Xposurephotos.com)

The boyband treated 27-year-old Humes to a vertiginous tour of Vegas in his own private helicopter.

And it seems Marvin was more than happy with the day out as he was seen grinning from ear-to-ear as he sat in the front seat next to the pilot.

Marvin looked excited before he set off in the helicopter (Picture: Xposure)

The helicopter took him over the Grand Canyon where he was treated to panoramic views of the breathtaking landmark.

And while the rest of his stags watched on at Marvin from the helipad, there’s no doubt they also hopped on their own helicopter to take a spin over the Grand Canyon.

The boys head to the helicopter ground with the rest of the stags (Picture: Xposure)

Dressed casually in t-shirts and shorts to keep cool in the Vegas heat, the helicopter ride will have come as welcome break for the boys who spent their first couple of days in Sin City hitting up the bars and casinos.

Not wanting the fun to stop, the Beat Again hitmakers then took a series of pictures with the world famous Las Vegas sign.

The lads pose with the Las Vegas sign (Picture: Xposurephotos.com)

Aston goofs around behind the boys as they pose for another shot (Picture: Xposure)

Clearly wanting the attention to be on him, Aston was seen goofing around behind the guys’ backs doing impressive somersaults and back-flips.

Marvin poses under the sign (Picture: Xposure)

And Aston takes his turn too… (Picture: Xposure)

The unmarried members of JLS, Aston Merrygold, Jonathan ‘JB’ Gill and Oritsé Williams, gave Marv the shock of his life the day before when they handcuffed him to a dwarf.

The dwarf, who goes by the name of 5 Cent and belongs to a company called ‘Tiny Entertainment’ promised to make Marvin his ‘b**ch’ for the day,

Marvin Humes kicked off his stag do by being chained to a dwarf and forced to wear a bikini shirt (Picture: Xposure)

The boys then proceeded to get the party in full swing as they hopped from hotel casino to hotel to casino, no doubt enjoying a few drinks along the way.

He was also forced to wear a t-shirt emblazoned with a bikini on a woman’s body – on the front and back.

Marvin posed with his stags as they visit the sites of the strip (Picture: Xposure)

Splashing their cash, and adding a touch of luxury to their day, the boys even had their own private limo bus waiting on them hand-and-foot to whiz them from hotel to hotel, supply of beer in case they got thirsty in-between hotel visits.